Carnival Corporation commenced construction on the first fully liquefied natural gas-powered (LNG) cruise ship in North America, Mardi Gras, in Turku, Finland.

The 180,000 gross-registered ton cruise ship is said to be using Shell as its supplier of LNG for Mardi Gras, as well as the supplier of another cruise ship to set sail in 2022.

Mardi Gras would also use Shell's infrastructure in cruise ports to refuel with LNG throughout its itineraries. Both vessels are some of the first of a new generation of cruise ships fully powered by LNG both while in port and at sea, Carnival said.

The cruise ship is being constructed by Finnish shipbuilder Meyer Turku. Meyer Turku’s sister company in Germany, Meyer Werft, constructed the world’s first fully LNG-powered cruise ship, the AIDAnova, which was completed in late 2018.

Mardi Gras is projected to have a capacity of 5,200 passengers, and move at 17 knots. The ship also features the first ever roller coaster at sea, the BOLT.

Carnival says the Mardi Gras is scheduled to debut in Europe on Aug. 31, 2020, and then head to New York for a series of voyages before moving to Port Canaveral, FL, for year-round Caribbean cruises.